• Creates joints 50% stronger than standard Kreg Joints
• Optimised for large outdoor projects
• For use with materials 1½" thick (38mm) and thicker
• Works with the Kreg Jig K3, K4, K4MS and K5
• Stop Block provides easy repeatable registration to work piece
• Face Clamp locks into Kreg Jig HD for secure drilling
• Hex-Shank HD Drill Bit is Quick-Change compatible
• NOTE: Not compatible with new generation Kreg 520 and 720 Series Pocket Hole jigs